Blood observation device



FIG. 1 is a front perspective view of a blood observation device.

FIG. 2 is a rear perspective view thereof

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof.

FIG. 7 is a left side elevation view thereof.

FIG. 8 is a right side elevation view thereof.

FIG. 9 is a front perspective view thereof with the cover open; and,

FIG. 10 is a rear perspective view thereof with the cover open.

The broken lines shown in the drawings illustrate portions of the blood observation device that form no part of the claimed design. 

CLAIM The ornamental design for a blood observation device, as shown and described. 